Plastic violin bow



Nov. 8, 1949 P. E. HOHL 2,487,442

PLASTIC VIOLIN BOW Filed Aug. 22, 1945 2 Sheets-Sheet l INVENTOR. PazzZfiiflo ATTD RN EYE Nov. 8, 1949 P. E. HOHL PLASTIC VIOLIN BOW 2 Sheets-Sheet 2 Filed Aug. 22, 1945 :3 20 INVENTOR. Pea/56 064 ATTU RNEYS Patented Nov. 8, 1949 UNITED STAT-ES PATENT OFFICE PLASTIC VIOLIN BOW Paul E. Hohl, Cleveland Heights, Ohio Application August 22, 1945, Serial No. 612,030

1 Claim. 1

The invention relates to a violin bow, and more especially to a plastic violin bow.

The primary object of the invention is the provision of a bow of this character, wherein all strings thereof will attain a uniform tension and therefore give a smooth tone quality when driven over the strings of the violin or other like instrument.

Another object of the invention is the provision of a bow of this character, wherein the tensioning of the strings can be had with ease and dispatch, and without release thereof, the bow being of novel construction, and is unique in the arrangement of the parts thereof, thus economically repaired or permitting replacement of parts without requiring skilled labor and in this manner minimizing costs in this respect.

A further object of the invention is the provision of a bow of this character, which is simple in construction, thoroughly reliable and efiicient in operation, strong, durable, readily and easily adjusted, light in weight without sacrificing strength and durability, and inexpensive to manufacture.

With these and other objects in w'ew, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, which show the preferred embodiment of the invention, and pointed out in the claim hereunto appended.

In the accompanying drawings:

Figure 1 is a side view of a bow constructed in accordance with the invention;

Figure 2 is a view looking toward the string side of the bow;

Figure 3 is a vertical fragmentary sectional view through the string adjusting end of the bow;

Figure 4 is a view similar to Figure 3 looking at other end of the bow;

Figure 5 is a detail plan view of the string mountings of the bow;

Figure 6 is a sectional view taken on the line 6-5 of Figure 3 looking in the direction of the arrows;

Figure 7 is a sectional view taken on the line 1-4 of Figure 4 looking in the direction of the arrows;

Figure 8 is a side view of the string bracket detached;

Figure 9 is a plan view thereof; Figure 10 is a sectional view taken on the line Ill-Hi of Figure 8 looking in the direction of I the arrows;

Figure 11 is a side view of the other string bracket;

Figure 12 is a plan view thereof.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, the violin bow constructed in accordance with the invention comprises, a bow or string bridging frame It), preferably made from plastic material, although it may be made from any other material, if desired, and at the hand grip end of this frame is an adjustable runner which may be termed the heel block H, while at the other end of such frame is a permanent toe 12. The block II is headed by a slide saddle l3 fitting the straight run of the frame 10, and carried through this saddle into a longitudinally cut slot 9 in the underside of the block is a coupling bolt [4 having a threaded sleeve head l5, for a feed screw I6, which is journaled through the frame l0 longitudinally thereof for exposure at its end next thereto, and this exposed end has formed therewith a knurled turning knob I1 for adjustment of the runner block I I.

The toe l2 and the runner block II have fitted thereto the stringing brackets l8 and I9, respectively. Both brackets l8 and ill, have properly directed clearances, each being denoted at 20 and 2|, respectively, for the bow strings 22, which are threaded therethrough from their tie racks 23 and 24, respectively, which are built upon the brackets and confined within cavities in the toe and block, as best seen in Figures 3 and 4 of the drawings.

The brackets l8 and I9 are made secure by fasteners 25. The strings 22 are tightened and slackened by the adjustment of the feed screw l6, through manipulation thereof at the knob 11.

In stringing the bow, it is only necessary to engage one end of a string, preferably of plastic material, under the notch in one of the brackets and then pass the same over its tie rack, thence through a clearance opening 20 or 2! as the case may be, thence to the other bracket where it passes through its clearance and over its tie rack and back through its clearance to the first rack where the operation is repeated. This continues until enough string has been racked between the two brackets, whereupon the free end of the string is engaged with a notch of one of the brackets. It will be seen that by moving to the right as viewed in Figure 1, the heel block II, the string will be given a uniform tension.

It is needless to point out the manner of working the bow, because this should be obvious from the foregoing taken in connection with the drawings, and therefore a more extended explanation has been omitted for the sake of brevity.

What is claimed is:

A bow of the kind described comprising a string 15 bridging frame having astoe and a heel, a notched bracket carried by the toe, a notched bracket carried by the heel, a transversely extending tie rack in each bracket and a stringhaving one end affixed in the notch of one bracket, wound alternately over the racks and having its other end aflixed in the notch of the other bracket.

PAUL E. HOHL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,068,985 Dandas July 29, 1913 1,646,118 Stadniczek Oct. 1.8, 1927 1,655,613 Jung Jan. -10, 1928 2,198,182 Shufity Apr. 23; 1940 

